Fixes bug #1002351: configure.ac warnings on newer autoconf

(bzr r11668.1.6)

1 files changed, 16 insertions, 15 deletions

diff --git a/configure.ac b/configure.ac
index 0fd8429ee..b311bf68b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -11,6 +11,7 @@ AC_INIT(inkscape, 0.48+devel)
 
 AC_CANONICAL_HOST
 AC_CONFIG_SRCDIR([src/main.cpp])
+AC_CONFIG_MACRO_DIR([m4])
 AM_INIT_AUTOMAKE([dist-zip dist-bzip2 tar-pax])
 
 AC_ARG_ENABLE([lsb], AS_HELP_STRING([--enable-lsb], [LSB-compatible build configuration]), [
@@ -69,7 +70,7 @@ if test "$GCC" = "yes"; then
   AC_MSG_CHECKING([compiler support for -Werror=format-security])
   ink_svd_CPPFLAGS="$CPPFLAGS"
   CPPFLAGS="-Werror=format-security $CPPFLAGS"
-  AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]), [ink_opt_ok=yes], [ink_opt_ok=no])
+  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], [ink_opt_ok=yes], [ink_opt_ok=no])
   AC_MSG_RESULT([$ink_opt_ok])
   if test "x$ink_opt_ok" != "xyes"; then
     CPPFLAGS="$ink_svd_CPPFLAGS"
@@ -83,7 +84,7 @@ if test "$GCC" = "yes"; then
   AC_MSG_CHECKING([compiler support for -Wno-pointer-sign])
   ink_svd_CFLAGS="$CFLAGS"
   CFLAGS="-Wno-pointer-sign $CFLAGS"
-  AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]), [ink_opt_ok=yes], [ink_opt_ok=no])
+  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], [ink_opt_ok=yes], [ink_opt_ok=no])
   AC_MSG_RESULT([$ink_opt_ok])
   if test "x$ink_opt_ok" != "xyes"; then
     CFLAGS="$ink_svd_CFLAGS"
@@ -96,7 +97,7 @@ if test "$GCC" = "yes"; then
   AC_MSG_CHECKING([linker tolerates -z relro])
   ink_svd_LDFLAGS="$LDFLAGS"
   LDFLAGS="-Wl,-z,relro $LDFLAGS"
-  AC_LINK_IFELSE(AC_LANG_PROGRAM([]), [ink_opt_ok=yes], [ink_opt_ok=no])
+  AC_LINK_IFELSE([AC_LANG_PROGRAM([])], [ink_opt_ok=yes], [ink_opt_ok=no])
   AC_MSG_RESULT([$ink_opt_ok])
   if test "x$ink_opt_ok" != "xyes"; then
     LDFLAGS="$ink_svd_LDFLAGS"
@@ -137,14 +138,14 @@ fi
 
 # Detect a working version of unordered containers.
 AC_MSG_CHECKING([TR1 unordered_set usability])
-AC_COMPILE_IFELSE([
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 #include <tr1/unordered_set>
 int main() {
   std::tr1::unordered_set<int> i, j;
   i = j;
   return 0;
 }
-], [unordered_set_works=yes], [unordered_set_works=no])
+])], [unordered_set_works=yes], [unordered_set_works=no])
 if test "x$unordered_set_works" = "xyes"; then
 	AC_MSG_RESULT([ok])
 	AC_DEFINE(HAVE_TR1_UNORDERED_SET, 1, [Has working standard TR1 unordered_set])
@@ -161,13 +162,13 @@ AC_MSG_CHECKING([for overzealous strict aliasing warnings])
 ignore_strict_aliasing=no
 CXXFLAGS_SAVE=$CXXFLAGS
 CXXFLAGS="$CXXFLAGS -Werror=strict-aliasing"
-AC_COMPILE_IFELSE([
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 #include <boost/optional.hpp>
 boost::optional<int> x;
 int func() {
   return *x;
 }
-], [ignore_strict_aliasing=no], [ignore_strict_aliasing=yes])
+])], [ignore_strict_aliasing=no], [ignore_strict_aliasing=yes])
 AC_MSG_RESULT($ignore_strict_aliasing)
 CXXFLAGS=$CXXFLAGS_SAVE
 if test "x$ignore_strict_aliasing" = "xyes"; then
@@ -609,7 +610,7 @@ LIBS="$LIBS $POPPLER_LIBS"
 
 AC_MSG_CHECKING(for new color space API in Poppler)
 popplercolor="no"
-AC_COMPILE_IFELSE([
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 #include <GfxState.h>
 
 int main() {
@@ -618,7 +619,7 @@ int main() {
   p = &GfxColorSpace::parse;
   return 0;
 }
-], [popplercolor=yes])
+])], [popplercolor=yes])
 if test "x$popplercolor" = "xyes"; then
 	AC_DEFINE(POPPLER_NEW_COLOR_SPACE_API, 1, [Use color space API from Poppler >= 0.12.2])
 	AC_MSG_RESULT(yes)
@@ -629,7 +630,7 @@ fi
 # Poppler's b604a008 commit changes this
 AC_MSG_CHECKING([whether Poppler's GfxPatch no longer uses GfxColor])
 popplergfxcolor="no"
-AC_COMPILE_IFELSE([
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 #include <GfxState.h>
 
 int main() {
@@ -638,7 +639,7 @@ int main() {
   patch.color[[0]][[0]] = color;
   return 0;
 }
-], [popplergfxcolor=yes])
+])], [popplergfxcolor=yes])
 if test "x$popplergfxcolor" = "xyes"; then
 	AC_DEFINE(POPPLER_NEW_GFXPATCH, 1, [GfxPatch no longer uses GfxColor in >= 0.15.1])
 	AC_MSG_RESULT(yes)
@@ -843,10 +844,10 @@ fi
 # Check for Apple Mac OS X Carbon framework
 carbon_ok=no
 AC_MSG_CHECKING([for Mac OS X Carbon support])
-AC_COMPILE_IFELSE([
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 #include <Carbon/Carbon.h>
 #include <CoreServices/CoreServices.h>
-], [carbon_ok=yes])
+])], [carbon_ok=yes])
 AC_MSG_RESULT($carbon_ok)
 if test "x$carbon_ok" = "xyes"; then
   AC_DEFINE(HAVE_CARBON, 1, [define to 1 if Carbon is available])
@@ -1013,8 +1014,8 @@ if test "$GXX" = "yes"; then
   ink_svd_CXXFLAGS="$CXXFLAGS"
   CXXFLAGS="-Wno-unused-parameter $CXXFLAGS"
   # -Wno-unused-parameter isn't accepted by gcc 2.95.
-  AC_COMPILE_IFELSE([int dummy;
-], , CXXFLAGS="-Wno-unused $ink_svd_CXXFLAGS",)
+  AC_COMPILE_IFELSE([AC_LANG_SOURCE([int dummy;
+])], , CXXFLAGS="-Wno-unused $ink_svd_CXXFLAGS",)
   # Note: At least one bug has been caught from unused parameter warnings,
   # so it might be worth trying not to disable it.
   # One way of selectively disabling the warnings (i.e. only where the